Convert Hectares to Square Miles

1 ha = 0.00386102 mi²

1 ha = 0.00386102 mi²

hectares (ha) square miles (mi²)
0.5 0.00193051
1 0.00386102
2 0.00772204
5 0.0193051
10 0.0386102
25 0.0965255
50 0.193051
100 0.386102
250 0.965255
500 1.9305
1000 3.861

To convert hectares to square miles, multiply the value by the conversion factor:

1 ha = 0.00386102 mi²

For example: 10 ha = 0.0386102 mi²

The Conversion Formula

To convert hectares to square miles, multiply the value by the conversion factor: 1 ha = 0.00386102 mi². For a worked example, suppose you need to convert 25 ha to square miles: 25 × 0.00386102 = 0.0965255 mi². To convert in the opposite direction, divide by 0.00386102, or equivalently multiply by 259.

About hectares

The hectare (ha) is the primary unit for measuring land in the metric world. Derived from 'hecto' (hundred) and 'are' (a historical unit of 100 m²), a hectare is 100 ares, or 10,000 square meters. It is approximately 2.47 acres. It is the language of international agriculture, forestry, and rural planning. hectares are commonly used in Farm sizes, Vineyards, Forestry management, and Real estate (Europe/Asia), Wildfire reporting.

A standard international rugby field is roughly 1 hectare.

About square miles

The square mile is an imperial unit of area equal to 640 acres. In the US, it is famously linked to the 'section' in the Public Land Survey System, which divided the American West into 1-mile grids. It is the standard for reporting town and county sizes in the US and UK. square miles are commonly used in City and state sizes (US), Population density (people/sq mi), Large ranch sales, and Weather systems, US Census data.

The island of Manhattan is roughly 23 square miles.

When Would You Convert hectares to square miles?

Converting between hectares and square miles is one of the most common area conversions. You might need this conversion when working with international specifications, following instructions written for a different measurement system, or comparing values across different standards. Having the conversion factor (1 ha = 0.00386102 mi²) memorized or bookmarked can save time in professional and everyday contexts alike.